Good UI needs to be clear and clean, and, if well arranged, could help you to increase DPS, survival, and make difference between wiping or down a boss.
I'm a clicker, so, I choose my UI for quick access to all abilities in a natural sequences.
My UI it has been specifically designed for hunters, but may work with other classes as well.

It includes all buttons and information in lower side of screen, to keep screen with much vision as possible.

From left to right:Raid Panel: With SUF, and SUF Aura Indication, it included space for 25 man only, but enough for raiding. You can add additional debuff to be monitored, by adding into SUF Aura setup

Damage Panel: I'm using Skada actually. By default, during combat it shows aggro, and when combat finishes dislay DPS. I don't like to monitor DPS during combat, to avoid distractions.

Left Button Panel: 3x3 Buttons, where I use as 'tool buttons'. Buttons to call pet and dismiss, and macro for Target (TGT). I include macro for main Target selection during combats (TAR). This 2 macros are globals. This panel includes potions and bandage as well.

Center Button Panel: 3 rows of buttons, grouped by abilities.
-1st row: CC abilities. I'll like to have this buttons in front of screen for quick selection (Silence Shot, Intimidation, Scatter, Scare Beast, Concussive Shot, Widow and Dispel)
-2nd row: Main Rotation abilities, ordered from left to right.
-3rd row: It's divided in 3 groups. First 3 buttons I'm using for free movement abilities. 6 next buttons for main cooldowns. 3 next buttons for protection abilities.

Right Button panel: 3 rows of buttons. Tools, Aspects, Traps
Over Right Button Panel, I include ExtraCD Cooldowns, and ArkInventory Mounts.

Chat Panel: Chatter and qChatBar for quick access to each channel.
Pet Bar is under Center Button Panel.

In lower side of screen I have 2 blocks of information panels, created with Kgpanels and Stat Block Core, ArkInventory and iMail.
It display next information:
- Gold
- Guild information with Ara_Broker_Guild_Friends
- Friends information with Ara_Broker_Guild_Friends
- Repair Stats
- Spec Switcher, which shows actual spec, and can be match with Gearsets for quick switching. I love this addon.
- Mail with iMail
- Bag Space
- FPS
- Latency
- Addon Memory usage

Inventory is well arranged by ArkInventory. You can add different categorys to each item.

In upper right side I use Chinchilla minimap, with coordinates, addon to roll, and clock.

Satrina Buffs it monitor buff for my and my pet, and azCastBar it monitor debuffs with bar style, for easy reading over character frame.

Thanks for that UI, since patch 4 I was looking for a well UI. This one works perfect. I use a resolution of 1920x1200, all i had to do was rearranging the position of recount a little. No bugs or errors, not in solo play, party or raid.

With this addon you can add any type of blocks like StatBlock_RangedStats and include Crit, Haste or whatever stat you need to show.

To be able for using melee stats you should install StatBlock_MeleeStats instead of Ranged, and then, simply choose, resize and move your desired melee stat, and position in the square space I'm using.

hi sorry from my bad english, i have a question for you, i install you compilation of UI al working great but i have 1 big problem with 4-5 addons i playng Russian localization WOW and in SUF,Scroling Combat text and others instead of text i see only "????" mb you know how to fix that trouble...
Thanks for great compilation
Amonra

Sorry for long time without answer.
Regarding the subject, I have no idea to change localization from SUF and other addons, but probably by looking at usUS.lua and replace with ruRU.lua after manually translating some sentences should work.

Since I'm using addons without any modification from myself, you can obtain more support by asking to addon creator.